faad — Process an Advanced Audio Codec stream
faad [options] [−w | −o <output_filename> | −a <output_filename>] input_filename
This utility provides a command line interface to libfaad2. This program reads in MPEG-4 AAC files, processes, and outputs them in either Microsoft WAV, MPEG-4 AAC ADTS, or standard PCM formats.
−a <filename>, −−adtsout <filename>
Sets the processing to output to the specified file in MPEG-4 AAC ADTS format
−b <number>, −−bits <number>
Set the output (individual) sample format. The number takes one of the following values:
1: 16-bit PCM data (default).
2: 24-bit PCM data.
3: 32-bit PCM data.
4: 32-bit floating-point data.
5: 64-bit floating-point data.
−d , −−downmix
Set the processing to downsample from 5.1 (surround sound and bass) channels to 2 channels (stereo).
−f <number>, −−format <number>
Set the output file format. The number takes one of the following values:
1: Microsoft WAV format
(default).
2: Raw PCM data.
−g |
Set the processing to not perform gapless decoding. |
−h , −−help
Shows a usage summary.
−i , −−info
Shows information about the about the input file.
−l <number>, −−objecttype <number>
Sets the MPEG rofile and object type for the processing to use. The number takes one of the following values:
1: Main object type.
2: Low Complexity (LC) object type (default).
4: Long Term Prediction (LTP) object type.
23: Low Delay (LD) object type.
−o <filename>, −−outfile <number>
Sets the filename for processing output.
−q , −−quiet
Quiet − Suppresses status messages during processing.
−t , −−oldformat
Sets the processing to use the old MPEG-4 AAC ADTS format when outputting in said format.
−w , −−stdio
Sets the processing output to be sent to the standard out.
Matthew W. S. Bell <matthew (at) bells23.org.uk>
faac(1)